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Finding the Fourth Proportional to 90,760.70, 125,229.04 and 54,943.11

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Solution

The fourth proportional to 90,760.70, 125,229.04 and 54,943.11 is: 75,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,760.70 : 125,229.04 = 54,943.11 : x
  2. Step 2: Convert to fraction form
    90,760.70/125,229.04 = 54,943.11/x
  3. Step 3: Cross multiply
    90,760.70x = 125,229.04 × 54,943.11
  4. Step 4: Simplify right side
    90,760.70x = 6,880,472,782.56
  5. Step 5: Solve for x
    x = 6,880,472,782.56/90,760.70
  6. Step 6: Final answer
    x = 75,808.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.